One Flag (2.6%, skipped after veto) - Round-based Capture the Flag, where one team attempts to capture a flag while the other team defends it. Most captures after four rounds wins. Four minute round time limit.

A limited playlist based on Team Doubles titled "St. Valentine's Day Massacre" was introduced on Thursday, February 14, 2008 at 10am PST by Bungie.[1] This ran until February 18, during which Bungie monitored certain actions performed by players and gave out Recon Armor to the winners.

One of the most effective tactics in Team Doubles is a trap, or bottle neck. This involves one player enticing the enemy into a kill zone by using ranged weapons (Carbine, Battle Rifle, or Sniper Rifle) from behind cover to weaken and draw the opposing team over to him, while the other player hides in the line of fire with a one-shot-kill, short range weapon (Shotgun, Energy Sword, etc.) and mops up the kills. This tactic allows players to cover each other and remain far enough apart to dodge grenades and duck to cover independently.

With the Oddball, this is partly reversed as the carrier will be the target, while the player with the one-hit-kill type weapon can be placed in position, again, to intercept the targets. With the oddball, positions can be camped for extended periods, but beware of camping in Slayer, as there are always alternative routes to the player's location.

If things go wrong, the player should always wait for his teammate, as rushing into a 1 on 2 battle rarely accomplishes anything.

On Snipers, communication is even more essential as one shot might weaken a player that the teammate can mop up.

Flanking the enemy is always useful in Snipers, as having to turn around makes effective sniping difficult.